| http://www.w3.org/ns/prov#value | - ed from service. (13) Working lines that have been subjected to a rapid descent by an employee using the CDA shall be removed from service. (14) Prior to making a drop, the building exterior shall be visually inspected and, where necessary, appropriate measures taken to ensure that building features, such as sharp edges of parapets and window frames cannot impair the structural integrity of the CD
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